Abstract

The influence of rabbit, horse, chicken and human serum upon the growth of aortic and myocardial cells from normal rabbits has been studied. Undifferentiated fibroblasts from heart grew best; cells from ascending aorta grew better than cells from thoracic or abdominal aorta. Rabbit serum promoted cell growth best; horse serum and human serum enhanced growth more than chicken serum. Cells grown in chicken serum differed morphologically from cells cultured in media with other serum additives. Growth in medium without any serum resembled closely the results obtained with chicken serum. For practical reasons, horse serum is suited best as additive to nutrient medium for in vitro cultures of rabbits' cardiovascular cells.

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